28742875

素因数分解:

$5^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 41513472

約数和(自身を除く): 12770597

約数列:

[1, 5, 7, 25, 35, 107, 125, 175, 307, 535, 749, 875, 1535, 2149, 2675, 3745, 7675, 10745, 13375, 18725, 32849, 38375, 53725, 93625, 164245, 229943, 268625, 821225, 1149715, 4106125, 5748575, 28742875]

約数ペア:

[(1, 28742875), (5, 5748575), (7, 4106125), (25, 1149715), (35, 821225), (107, 268625), (125, 229943), (175, 164245), (307, 93625), (535, 53725), (749, 38375), (875, 32849), (1535, 18725), (2149, 13375), (2675, 10745), (3745, 7675)]